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Guhring HSS / Cobalt Drills - GT
| Guhring offers a parabolic flute design called GT that allows end users to
drill deeper, with less drill retracts and high feed rates. The open flute
design decrease chip packing while the parallel web design aids in chip
evacuation. Once considered a design for drilling aluminum, Guhring refined the
parabolic flute form and developed designs for all materials. No other
manufacturer offers the variety of parabolic flute designs that Guhring now
offers as standard stocked items.
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 GT50
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| The GT50 design is best suited for aluminum and gummy materials. The wide open
flute design allows the GT50 to drill faster and deeper than conventional Type
N flute profiles without time consuming retracts for chip clearing. GT50
parabolic drills are used in taper length and extra length style drills for
deeper hole applications.
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 GT80
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| GT80 parabolic drills have a thicker web design than a GT50 drill for steel,
alloyed steel and cast iron materials. The GT80 flute form is available in stub
and jobbers length tools where extra rigidity is desirable.
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 GT100
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| Guhring’s GT100 parabolic flute design is suitable for a wide range of
materials and the most universal. Available in high-speed steel (HSS), cobalt
(HSCO) and carbide substrates, the GT100 flute form can be used to successfully
drill ferrous and non-ferrous materials. Standard GT100 drills incorporate a
130º point angle with a Type A web thin for maximum efficiency.
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 GT500
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| The most recent addition to the GT parabolic offering is the GT500. The GT500
drill incorporates a 130º point angle with a GN-B web thin for improved cutting
edge strength. Combined with a wear resistant powdered metal cobalt substrate,
the GT500 flute profile is well suited for common steel, alloyed heated steel
and stainless steel applications as well as cast iron.
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